Controls; Ecmsc - Price FFU series Installation And Service Manual

FAN FILTER UNIT
INSTALLATION & SERVICE INSTRUCTIONS
STEP 1: Determine test point voltage (VDC) from the formula based on the desired airflow using the appropriate chart below.
Constant Flow – Clean Filters (Forward Curved)
Voltage Velocity
Volt FPM BTR - FC
115 45-135 VDC =
240 45-135 VDC =
277 45-135 VDC =
Constant Torque – Clean Filters (Backwards Curved)
Voltage Velocity
Volt FPM BTR - BC
115 45-135 Not Available
240 45-135 Not Available
277 45-135 Not Available
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FAN FILTER UNIT - Manual | priceindustries.com
POTENTIOMETER
(POT)
FIGURE 38: ECMSC SPEED CONTROLLER.
24x24
RSR - FC
CFM-50 CFM-39
VDC =
96 67
CFM-45 CFM-39
VDC =
97 67
CFM-48 CFM-31
VDC =
95 67
24x24
RSR - BC
Not Available
Not Available
Not Available
MEASURE (+) VDC MEASURE (-) VDC
24x36
BTR - FC RSR - FC
CFM-78
VDC = VDC =
144
CFM-76
VDC = VDC =
145
CFM-71
VDC = VDC =
145
24x36
BTR - BC RSR - BC
CFM + 233
VDC = VDC =
449
CFM + 240
VDC = VDC =
450
CFM + 233
VDC = VDC =
444
BTR - FC
CFM-91
CFM-35
VDC =
198
118
CFM-39 CFM-88
VDC =
116 198
CFM-31 CFM-85
VDC =
118 199
BTR - BC
CFM + 267 CFM + 226
VDC =
437 486
CFM + 193 CFM + 185
VDC =
393 459
CFM + 208 CFM + 165
VDC =
399 448
24x48
RSR - FC
CFM-72
VDC =
155
CFM-64
VDC =
156
CFM-63
VDC =
153
24x48
RSR - BC
CFM + 302
VDC =
517
CFM + 313
VDC =
522
CFM + 307
VDC =
512